Buying Guide

Best Calculators Under $20

Find calculators under $20 for students, school, office, basic math, scientific calculations and everyday use.

Guide Top Picks Comparison FAQs
Last Updated
2026-06-30
Top Picks Comparison FAQs
Guide Overview

Shop calculators under $20 for school, office, home budgeting, student math and everyday calculations.

Top Picks

Compare each recommended product in a clear, full-width layout.

Buying Notes

Practical advice, key features, and important points to consider before buying.

Best Calculators Under $20

Calculators under $20 can be a smart choice for students, parents, teachers and office users who need useful features without a high price. Many basic calculators, pocket calculators, desktop calculators and some scientific calculators are available in this budget range.

Buying Tips

  • Match the class: Basic calculators work for simple math, while scientific calculators support algebra and science.
  • Check display size: A clear screen helps reduce errors.
  • Look for dual power: Solar and battery calculators are more reliable.
  • Read ratings: Choose budget calculators with strong customer feedback.

Frequently Asked Questions

Quick answers to common questions about this product category.

Yes, many basic, desktop and student scientific calculators are available under $20.

Yes, if the calculator meets the student's class requirements and has the needed functions.

Comparison Table

Image Model Brand Action
Sharp EL-W516TBSL Advanced Scientific Calculator with WriteView™ 4 Line Display & Solar Power Sharp EL-W516TBSL Advanced Scientific Calculator with WriteView™ 4 Line Display & Solar Power Sharp
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Texas Instruments BA II Plus Professional Financial Calculator Texas Instruments BA II Plus Professional Financial Calculator Texas Instruments
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Texas Instruments TI-84 Plus CE Color Graphing Calculator, Mint Texas Instruments TI-84 Plus CE Color Graphing Calculator, Mint Texas Instruments
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Sharp 12-Digit Print Calculator Desktop Size Adding Machine, Perfect for Everyday Use and Office, Bright, Large Easy-to-Read Numbers on Both the Display and the Two-Color Printed Tape (EL2196BL) Sharp 12-Digit Print Calculator Desktop Size Adding Machine, Perfect for Everyday Use and Office, Bright, Large Easy-to-Read Numbers on Both the Display and the Two-Color Printed Tape (EL2196BL) Sharp
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Casio FX-9910CW-PK-W-IT Scientific Calculator Casio FX-9910CW-PK-W-IT Scientific Calculator Casio
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Casio fx-CG100 ClassWiz Color Graphing Calculator with 3D Graph & Python | Large High-Res Display, Basic & Advanced Functions | Ideal for Exams, STEM, Programming & Advanced Casio fx-CG100 ClassWiz Color Graphing Calculator with 3D Graph & Python | Large High-Res Display, Basic & Advanced Functions | Ideal for Exams, STEM, Programming & Advanced Casio
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Casio fx-300ES Plus 2nd Edition - Standard Scientific Calculator | 262 Functions, Natural Textbook Display | Ideal for Middle School, High School Math, Statistics & Algebra | Blue Casio fx-300ES Plus 2nd Edition - Standard Scientific Calculator | 262 Functions, Natural Textbook Display | Ideal for Middle School, High School Math, Statistics & Algebra | Blue Casio
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CATIGA Financial Calculator Business Analyst Master, TVM, IRR, NPV, Cash Flow, Amortization & Break-Even, Perfect for Real Estate, Banking, Accounting & Finance Professionals, 10-Digit LCD, CF-300 CATIGA Financial Calculator Business Analyst Master, TVM, IRR, NPV, Cash Flow, Amortization & Break-Even, Perfect for Real Estate, Banking, Accounting & Finance Professionals, 10-Digit LCD, CF-300 CATIGA
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Scientific Calculator, w/Equation Recall, 3-1/5" x 6-1/10" x 3/4", Sold as 1 each Scientific Calculator, w/Equation Recall, 3-1/5" x 6-1/10" x 3/4", Sold as 1 each Texas Instruments
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Scientific Calculators with Graphing Calculator, iPepul Desktop Math Calculator for College Students, 10 Modes/ 4 Graphing Functions, School Supplies for Middle High School Teachers Office Scientific Calculators with Graphing Calculator, iPepul Desktop Math Calculator for College Students, 10 Modes/ 4 Graphing Functions, School Supplies for Middle High School Teachers Office iPepul
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Casio fx-55PLUS Fraction Calculator – Elementary/Middle School Math Made Easy | Fractions, Mixed Numbers, Simplification | Great for Classroom Learning Casio fx-55PLUS Fraction Calculator – Elementary/Middle School Math Made Easy | Fractions, Mixed Numbers, Simplification | Great for Classroom Learning Casio
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Victor 1190 Executive Desktop Calculator, 12-Digit LCD Victor 1190 Executive Desktop Calculator, 12-Digit LCD Victor
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